#Engineers manipulate color on the nanoscale, making it disappear
“#Engineers manipulate color on the nanoscale, making it disappear” The researchers experimented with nanoscale strips of a two-dimensional semiconductor, tungsten disulfide, arranged on a gold backing. Credit: University of Pennsylvania Most of the time, a material’s color stems from its chemical properties. Different atoms and molecules absorb different wavelengths of light; the remaining wavelengths are…